Dump-car.



A. CAMPBELL.

DUMP UAR.

APPLICATION PILEDAAPYR. 20, 1908.

91 3 Q 358. Patented Feb. 23, 1909.

8 SHEETS-BEBET 1.

WI-TNESSES: INVENTOR .23 N W 1 fl gy/e 64/710 be I Y I A. CAMPBELL.

v DUMP GAR.

APPLICATION FILED APR. 20, 1908.

Patented Feb. 23, 1909.

- 8 SHEETS-SHEET 2.

A. CAMPBELL.

DUMP GAB. APPLICATION IIL ED APR. 20, 1908.

Patented Feb. 23, 1909.

INVENTOR flgy/e Camp/7e v Mmsssss:

' B M, @uv/'T -v e A/mrromvavs A. CAMPBELL.

DUMP GAR.

APPLICATION FILED APR. 20, 1908.

913,358. Patented Feb. 23, 1909.

6 SHEETS-SHEBT 4.v

///'s A TTORNE v5 A. CAMPBELL.

DUMP GAR. ABPLIOATION FILED APR. 20, 1908.

Patented Febl23, 1909.

6 SHEETS-SHEETFJ INVENTOR fl/y /e C'anvpefl BY 6M1;

WITNESSES:

fyl's ATTORNE ys A. CAMPBELL.

DUMP GAR.

APPLICATION FILED APR. 20, 1908.

Patented Feb. 23, 1909.

6 SHEETS- SHEBT 6.

I INVENTOR flg kz CaZ/77p6e// BY M0 22M, 62M

WITNESSES:

A/sA ndRNEYs v UNITED sTAC s PATENT OFFICE.

'ARGYLE CAMPBELL, CHICAGO, ILLINOIS, ASSIGNOR .TO ENTERPRISE RAILWAY EQUIPMENT COMPANY, OF CHICAGO, ILLI NOIS,'A CORPORATION OF ILLINOIS.

DUMP-OAR.

' Specification of Letters Patent.'

Patented Feb. 23, 1909.

Application filed April 20, 1908. Serial No. 427,982.

To' all whom "it may concern: I

Be it known that I, Ancrnn CAMPBELL, a

' citizen of the United States, residing in Chicago, in the county of Cook and State of Illinois, have-invented a new and useful Improvement in Dump-Oars, of which the foldump car door operating mechanism of a strong, efficient and durable construction,

composed of few parts and capable of being easily operated, and by which'the doors will be held or locked securely in their closed position, and in which the load on the doors will have no tendency to unlock or release the door operating mechanism, while at the time the door operating mechanism is or.

- may be located above the doors and generally between the center sills.

, I My invention consists in the combination with a dump car door or doors, of an opere ating mechanism therefor, comprisingan operating shaft above the doors and preferably between the center sills'of the car, a winding drum on said shaft having an up per shouldered locking face, the drum being preferably four sided, a locking block hav ing a shouldered under face adapted to engage and interlock with theshouldered up per face of thedrum, a pluralit of connecting links between the locking b ock and the drum, the same being preferably three in number, and fitting and corresponding to three sides of the drum while the locking block fits an'd corresponds to the remaining side thereof, andsupporting bars or connections between the doors and the locking block, the supporting bars 01" connections having a pivotal connection with the locking block directly over or in line with the operating shaft so that. the load'on the doors will not tend to turn the operating shaft or to release the operatingmechanisin, the supp.ortmg bars or connections and operating shafts being so constructed and combined or arranged, that the supporting bars or connections will clear the operating shafts when the door or doors are raised and in their closed position.

The invention further consists in a pair of transversely hinged doors on opposite "si e elevation of same.

provided with-a bend therein to clear the opcrating shaft. 7

It further consists of a novel construction of parts anddevices'and in the novel coinbinations of arts and devices herein shown and describes and'more particularly specified in the claims. Inthe accompanying drawing formin a part'of this specification, Figure 1 is a iagrammatic plan view of a dump carembodyin my invention. Fig. 2 is a diagrammatic Fi 3 is a vertical cross section on line 3-3 of Fig. 1. Fi 4 is a detail elevation partly invertical imitudinal section showing the doors open. *i 5 is a detail perspective view of the 100 King block. Fig. 6 is a detail perspective view of the winding drum. Figs. 7 to 14 illustrate a number of diflerent slightly modified 5 constructions of. my invention,-

suitable for use in ap lying the same to different cars and to dl erent arrangements of dump 'car doors. 'Fig. Tie a detail elevation, partly in vertical section, illustrating a modification in which a short operating shaft is employed so that'the pivotedsu porting bars or connections between t e locking block and the doors may clear the operating shaft at its ends. Fig. 8 is a detail plan view of the construction shown in the locking block and door clears the operating shaft at the end, while the other clears it by having a bend therein, and in which the operating shaft is arranged parallel to the hinges of the doors.

In'the drawing, 1 represents a of any suitable kind or construction.

2 are the center sills, 3 the car floor, the same preferably having a hopper shape at the portion '4: thereof adjacent to the doors The doors 5 are hinged at 6 to hinge brackets or members 7, secured to or forming part of the car frame. Two doors 5 on opposite sides of the center sills are Preferably connected together by abridge bar '8 extending across and belowthe center sills so that the two doors thus connected may be operated as one. The doors are preferably arranged in airs on opposite sides of thecenter sills, and are preferably-hinged to swing open on axes or pivots which are transverse to the center sills so that the doors are transversely opening ones. And

' two sets of doors, each set comprising a pair are preferably arranged with their free or swinging edges adjacent sothat both sets -may be simultaneously opened or closed by the same operating shaft and drum,'as will be readily understood from Fig. 4.

The-operating shaft '9' of the dump car locking face or side 13 furnished with a shoulder or projection 14, the locking upface 13 of the. drum 12 being preferably slightly inclined toward the shoulder .14.

The'drum 12 is further provided withpivot lugs 15, and also with guides or flanges 16 on the side thereof opposite the pivot lugs 15. i

' 17 is a lockingblock or link having on its under face 18 .a shoulder 19 adapted to interlock with and engage the shoulder 14 on the upper or locking face 13-of the drum 12. The locking block 17 is 'flexibly connected to the drum 12 or its pivot lugs 15,

by connecting links 20, preferably three in number and fitting and corresponding to three sides of the drum 9, while the looking block 17 fits and correspondsjto the ref mainin'g side thereof. The terminal link is hinged or'pivotally connected to the pivot lugs 15 by a pivot pin 21, and similar pivot.

p1ns 21 connect the several links with eachother and to the locking block 17. The my;

derface 18 of the locking block is prefers: ably slightly inclined to correspond to the inclined upper locking face 13 ofv the drum 12. The locking block 17 is flexibly connected with the door or doors 5 or the bridge bar dump car v a 2st at ts lower end with the door 5 or the 8 between two doors 5, when two doors are thus connected 'to be operated as one, by means of a pivotal supportlng bar or con block 17, and a loose or pivotal connection connectingbridge Sbetween two doors. The pivotal connection 23 between the supporting bar 22 and the locking block 17 may be of anysuitable kind or construction. As illustrated in Figs. 1 to5, it consists of 2.

opening 26 in the upper end of the supporting bar 22. The pivotal connection between the supporting bar 22 and the door 5 or its 1 to 5, it consists ofan eye bolt 27, attached to the door or its bridge bar, which fits in a supporting bar 22.- The pivotal connection '23 between the ,supportingbar 22- and the locking block or member 17 is arranged dioperating shaft. The supporting bar or connection 22 between the door and locking block is arranged to clear the operating shaft when the doors are. in their closed or locked position. This is preferably done. by providing the pivotal supporting bar or connection 22 with a bend 29 therein. I

Where the doors are arranged to be operated in sets or pairs, as shown in the drawing, two supporting bars 22 are connected to the same locking block 17, one at each end thereof, as will be readily understood from Figs. 4 and 5, so that two sets ofdoors may ,be operated simultaneously from the same drum.. 7

.The operating shaft 9 wheniarrangedlongitudinallyh'etween the center sills, as illusconnecting shaft 30extending transversely to the side of the car'andconnected with the operating shaft;-9fby bevel gears 32, 313, or other suitablegearing. The 'connectingshaft 30 is furnished with a ratchet 31 and pawl 34 and pawl lever 35, or other suitable means fo ractuating theoperating shaft 9.

In the modification illustrated in Figsf7 and 8, the, Operating shaft 9 is made short and the supporting bars 22 between the locking block 17 and the doors 5 are ar ranged to-zclear the operating shaft at the ends thereof so that these supporting bars for connections 22 do not require-to be pro- Fig. 3. p

Inthe modification illustrated in Figs. 9

which connect the locking blocks l7 with nection 22,.which has a loose or pivotal coni nection 23 at its upper end with the locking bridge barS may likewise be of any suitable kind or construction. As-illustrated in Figs.

corresponding eye 28 at the lower end of the I rectly'over or in line with the center of the operating shaft 9 so that the load on the doors'will exert no turning tendency on the I trated' in, Figs. 1 to 4, is actuated through 'vided with any bend therein, as shown in.

and 10, the pivotal supporting bars 22 connecting lug or eye 25 on the locking block 17 which fits in a corresponding pivot eye or ating two oppositely swinging doorsfrom one and the same" winding drum, the supportin' links 22clearing the operating shaft 9 at t ends,the same as in the construction shown in Figs. 9and 10. j

In the modification illustrated in Figs. 13 and 14=, the operating shaft 9 is arranged .-,transver sely to the center' sills instead of parallel thereto, and the winding drum 12 s arranged on the inner end of the operating ho'shaft, and one of the supporting links or fbars 22 is arranged to clear the operating shaft at the end, while the other supporting bar'Q? is furnished with a bend to enable it tofclear' the operating shaft 9. And in the 25 construction .shown in Figs. 13 and 14, two

doors 5 are connected by a bridge or con- ,nect'ing bar- 8 so that two doors may be operated simultaneously by each of the links 22 and 22 I I It will, of course, be understood by those skilled in the art that the several difierent modifications illustrated in Figs. 7 to 14 are only intended to illustrate a few of the different modified embodiments of my invention, and I wish it to be expressly under- 60 the shoulder side of the drum.

stood that the modifications so shown shall not be in any way considered as tending to limit the scope of my claims, becausemy invention may be embodied in various other constructions than those, illustrated in any of the figures in the drawing. I

The locking block or member I to which the doorsupporting connection 22 is pivotally' secured, in my invention, itwill be seen,

' forms the fourth or terminal member" of the link connection which winds around the drum in raising and lowering the doors. And 'it is this terminal link member 17, which restsdirectly upon the flat upper side i 5001' face of the drum, through which the load uporithe doors'is directly transmitted to the drum 12 and operating shaft 9.

While the center of the pivotal connection I between the supporting bar or link 22 and the locking block 17 should be directly'over the axis or center of the operating shaft 9,

. the lower bearing face of the locking block 17 against the upper flat bearing face of the drum12 preferably has its major portion on This in connection with the slight inclination 'of the contacting faces of the drum and locking \block towards the shoulder-of the locking block aids in holding the parts securely in their locked position. a

I claim 1. In a dump car, the combinaiion with a load supporting door, of an operating'shaft above the door, a polygonal winding drum on said shaft having an upper shouldered face, a locking block having a lower shouldered locking face engaging the shouldered locking face of the drum, flexible connecting links one for each face of the polygonal drum between the locking block and the drum and a supporting bar or connection between the locking block and door havin a pivotal connection with the locking bloc: directly over the operating shaft so that the load on the door will not. tend to turn the operating shaft in the release or opening direction, substantially as specified.

2. In a dump car, the combination with a load supporting door, of an operating shaft above the door, a polygonal winding drum on said shaft having a substantially horizontal upper shouldered face, a lockin g block having a lower shouldered locking'face engaging the shouldered locking face of the drum, flexible connecting links one for each face of the polygonal drum between the locking block and the drum and a supporting bar or connection between the locking block and door having a ivotal connection with the locking block irectly over the operating shaft so that the load 'on the door will not tend to turn the operating shaftin -the release or opening direction, the locking faces of said drum and locking blockbeing slightly inclined in the direction opposed to the. opening of the door, substantially-as specified.

3. In a dump car-,the combination with a load supporting door, of an operating shaft above the door, a winding drum on said shaft having an upper shouldered face, a

locking block having a lower shouldered locking face engaging the shouldered looking face of the drum, flexible connecting links between the locking block and the drum, and a supporting bar or connection between the locking block'arid door having a pivotal connection with the locking block directly over the operating shaft so that the load on thedoor will not tend to turn the operating shaft in the release or opening direction, said supporting bar having a bend therein to enable the same to clear the operating shaft, substantially as specified.

4. In a dump car, the combination with a load supporting door, of an operating shaft above the door, a polygonal drum thereon having a substantially horizontal upper flat side, a link connection corresponding in number of links to the faces of the drum and adapted to wind around'the drum and having a flat sided terminal-member fitting the flat upper side of the drum and a supporting connection between said terminal link member and the door, substantiallyas specified.

'5. In adump car, the combination with a load supporting door, of an operating shaft above the door, a drum thereon having an upper flat side, a link connection adapted tov wind around the drum and having a flat 'sided terminal member fitting the flat upwind around the drum and having per side of the drum and a supporting connection between said terminal link member and the door, said supportlng connectlon being pivotally connected to said terminal link member directly over the operating shaft,

substantially as specified. 1

' member directly over the operating shaft,

i ing the upper locking face and said drum and terminal link member having interlocklng shoulders to cause Said I terminal link memberto move with the drum 1 when the latter is turned in the door releasing or loweringdirection, substantially as p ed I 7. In a dump car, the combination with two hinged doors, ofa bridge-or connecting bar secured thereto,'--an operating shaft above-the doors, apolygonal drum on said shaft having an upper substantially horizontal' locking face, a lockin block engagof said drum, a" link connection between said locking block and the drum, said link connection having one linkfor each face of the polygonal drum except-ing the face thereof engaged by said locking block and a supporting connection between the locking block and the bridge or' connecting bar of the doors, substantially as specified. j

S. In a dump car, the combination with two hinged doors, of a bridge or connecting bar secured thereto, an operating shaft above the doors, a polygonal drum on said shafthaving an upper substantially *horizontal locking face, a locking block engaging the upper locking face of said drum, a link eonnec'tion between said locking block'and the drum, said link connection having one link for each face of the polygonal drum-excepting the face thereof engaged by said locking block and a supporting connection between the locking block and thebridge or connecting bar of the doors, said locking block and drum having interengaging shouldered faces, substantiallyas specified.

9.111 a dump car, the combination of two oppositely swinginghinged doors, an

operating shaft above the doors, a polygonal drum on said shaft having an upper substantially horizontal locking face, "a locking block-having a lower locking face engaging the locking face of said drum, a link con- .nection between said locking block and the drum, sald link connectlon having one link extending froinsaid locking block, one to each of said doors, substantially as specified.

.10. In a dump ,car, the combinationwith four doors, of bridge bars connecting the doors together in two sets' of oppositely swinging pairs, anoperating shaft above the doors, a polygonal drum on said shaft having an upper substantially horizontal locking face, a locking block having an under locking face engag ng the upper locking face of the drum, a link connection betweensaid locking block and the drum, said link con- I nection having. one link for each face of the polygonal drum excepting the face thereofv engaged by saidlocking block and two supdoors together in two sets of oppositely swinging pairs, an operating'shaft above the doors, a polygonal drum-onsaid shaft having an upper substantiallyjhorizontal looking face, a locking block having an'under locking block and the drum, -'said link connection having onelink for each face of the polygonal drum exceptingthe 'face thereof engaged by said lockingb porting connections extending from theflocking block, one-to each bridge bar, said. supporting connections being pivotally connected to said locking block direetlyover the operating shaft, substantially as specified.

12. In a dump car, the combination with.

four doors, of bridge bars connecting the doors together in two sets of oppositely swinging pairs, an operating shaft above the doors, a polygonal drum on said shaft having an 'upper substantially horizontal locking face, a'locking block having an under l ockin face engaging the upper lo'cking face 0 the drum, a link connection between said locking block and the drum, said link connection having one link for each face of the polygonal drum excepting the face thereof engaged by said locking block, and two thecombination with .four doors, of bridge. bars connecting the ock and two suplocking faceenga glng the upper locking face of the drum, a link connectionbetweensaid supporting connections extending. from the,

locking block, one to each bridge bar, said supporting-connections being pivotally connected to said locking block directly over the operating shaft, said locking block having an integral connecting, lug at each end thereof, substantially as specified.

13. In a dump'car, the combination with a load supporting door, of a supporting link pivotally connected to said door, an operating shaft, a polygonal drum on said shaft having an upper substantially horizontal locking face, a link connection correspond-Y ing in number of links to the faces of the drum and adapted to wind around the drum and having a terminal link pivotally connected directly over the operating shaft to said supporting link which is connected to the door, substantially as specified.

14. In adump car, the combination with a load supporting door, of a supporting link connected to said door, an operating shaft, a polygonal drum on said shaft having an upper substantially vhorizontal locking face, a link connection corresponding in number of links to the faces of the drum and adapted to Wind around .the drum and having a terminal link pivotally connected directly over the operating shaftto said supporting link which is connected to the door, said terminal link and drum having interengaging shouldered faces, substantially as specified.

15. In a dump car, the combination with the center sills, of transversely swinging doors on each side of the center sills, a bridge bar connecting said doors, an operating shaft nection between said locking block and the between-the center sills, a polygonal drum .on said shaft having an upper substantially horizontallocking face, asupporting link pivotally c onnected to said bridge bar and a link conneetionjbetween said drum and said supporting link, said link connection having one link for each face of the polygonal drum, said supporting link being pivotally connected at its upper end to the terminal link of 'said link connection directly block having an under face fitting over the operating shaft, substantially as specified.

16. In a dump car, the combination w1th the center sills, of transversely-swinging porting link, said link connection having one link for each face of the polygonal drum, said supporting link being pivotally-con nected at its upper end to the terminal link of said link connection directly over the operating shaft, said terminal link and said drum having interengaging locking faces, substan- .tially as specified.

17. In a dump car, the combination with the center sills, of a load supporting door below the center s ills,.an operating shaft between the center sills, a polygonal drum on said shaft having an upper substantially horizontal locking face, a supporting link having a pivotal connection with the door, a-locking the uppermost face of said drum and a i'nk condrum, said link connectionhaving one link for each face of the polygonal drum excepting the face thereof engaged by said looking block, substantially'as specified.

, ARGYLE CAMPBELL.

\Vitn'esses: i i i H. M. MUNDAY, EDMUND AncooK. 

